spangles



W. E. SPANGLER.

EDGING SHEET METAL;

(No Model.)

No. 316,196. Patented Apr. 21, 1885.

WASHINGTON E. SPANGLER, OF \VAY CROSS, GEORGIA.

EDGING SHEET lVlETAL.

SPECIFICATION forming part of Letters Patent No. 316,196, dated April 21, 1885.

Application filed September 8, 1884. (No model.)

double-edge tin or sheet-iron plates for use in roofing houses and for similar purposes.

In the drawings, Figure 1 is a perspective view of my machine. Fig. 2 is a transverse section of same. crimped or edged sheets. Fig. 4sh0ws two of said sheets j oined. Fig. 5 is a rear end view of the machine, and Fig. 6 is a detail view of the shaft. Fig. 7 is an edge view of a finished and flattened seam as made upon my machine.

In preparing tin for application to the roof it is usual for the tinners to crimp or edge the sheets, as shown in Fig. 3, and then interlock them, as shownin Fig. 4, by sliding the crimped edges one in the other. This is commonly done by folders of suitable pattern, and requires a great deal of time and'labor. My machine is designed to do this work accurately and speedily.

In carrying out my invention I prefer to employ a suitable support, A, on one edge of which I secure the cylinder B, which is preferably formed of a bar of stout flat metal secured at one edge, b, on the support, and bent into the cross-sectional form shown, with its other edge, b, a suffi cient distance from the face of edge I) to provide the slot B, through which to pass the tin in the operation of the device. This slot is preferably formed, as shown, flush withtheupper face of the support,which forms, practically, a table on which to support 'the tin sheet while being crimped, though such table may be dispensed with where desired. This base B forms the cylinder or casing, and has at its rear end a bearing, B for the end of the shaft. The edgeb of plate B is extended longitudinally beyond the forward end of the cylinder to form the stop 0. I prefer to so form the stop, though, manifestly, it may Fig. 3 shows one of the.

be made separate from the cylinder-plate and secured in position in any suitable manner.

The shaft D is provided at one end with a crank, D, or other suitable means for revolving it, and has its other or rear end formed with a short journal, D turning in the bearing B I also form the shaft near the crank D with an enlarged cylindrical portion or journal, D fitted to turn snugly within the cylinder. These parts D D form the journals of my shaft, both being supported in bearings in the cylinder or casing. shaft at or near the crank with a radial pin or projection, E, suitably arranged to engage against the upper or lower sides of slots 0 in the several positions of the shaft.

The body of the shaft between the journals D D is flattened in cross-section, as shown in Fig. 2, and has formed in one of its edges a groove, d, which extends longitudinally along the shaft, and may also be cut across the journal D as shown in Fig. 6.

The operation is simple. The shaftis placed in the cylinder and adjusted into the position shown in Fig. 1. The groove d is now opposite the slot B, and the edge of a tin or other metal plate is inserted in said groove. The shaft is now revolved into the position shown in full lines, Fig. 1, and carries the tin with it, bending the same into the shape shown in Figs. 3 and 4. This is known in the trade as edging the sheets.

and the sheet of-tin is slipped off the rear end of shaft, and the latteris reinserted in the cyl- I also provide the The shaft,with the tin bent around it, is now removed from the cylinder,

inder ready for another sheet, and so the operation continues.

It will be seen that the stop 0, together with pin E, indicates accurately the proper point at which the shaft should be set'to receive the tin, and also stops same when it has been turned to the extent necessary to give the proper bending to the tin, thereby preventing damage to the tin. I therefore prefer to emsupport, and the slot B, of the flat shaft D, relatively so arranged that the cylinder makes having the groove (1 on one edge and adapted more than three-fourths and less than awhole to be rotated in the said cylinder, as set forth. revolution, as set forth.

2. The machine for edging tin consisting of In testimony whereof I afiix my signature in 5 the support provided with a stop, 0, the 05 1- presence of two Witnesses.

inder slotted longitudinally and provided with a bearing, B the shaft provided with WASHINGTON SPANGLER' journals D D and held and rotatable in the Witnesses: cylinder and formed with a longitudinal W. A. WRIGHT,

1o groove, d, and a pin, E, the stop and pin being I L. A. WILSON. 

